Corrugator.



N. 737,277. y PATBNTED AUG. 25, 190s.

T. P. RQWLAND.

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N0.737,277. PATENTED AUG.25,1903. l

T. P. ROWLAND.

-G0RRUGAT0R- APPLICATION IILED MAY 6, 1902.

N0 MODEL. v 7 SHEETS-SHEET 2.

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PAT-BNTBD AUG. z5, 1903.v

T. I'. ImWLAND.`

`CORRUGrA'IOR. APPLIGATION'HLBD MAY 6. 1902.

7 SHEETS-SHEET 3.

' No MODEL.

No. 737,277. PATENTED AUG. 25, 1903., T. ROWLAND.

CORRUGATOR.

APPLIOATION FILED un 6. 1902l I 1 sums-snm' 4.

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No. 737,277. 'PATENTED AUG. 25, 1903.

'I'. F. ROWLAND. I y y GORRUGATOR,

APPLICATION FILED MAY 6, 1902.

N0 MODEL. L 7 SHEETS-SHEET 5.

' No MODEL.

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No. 737,277.V PATENTED AUG. 25, 1,903. V`T.P. ROWLAND.

GORRUGATOR.

.APPLIGATION FILED MAY 6. 190i#l `No MODEL. 7 SHEETS-SHEET 7.

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.the machine.

,UNITED STATES Fatented August 25, 1903".v

"PATFT- OFFICE.r

THOMAS F. ROWLAND, oF NEW YORK, N. Y.

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SPECrFIoATIoN forming part of Letnersratent No. 737,277, dated August 25, 1908. Application filed May 6, 19( l2 l vSerial No( 106,137` Y (No model.)

Be it known that I, THOMAS F. RowLAND, a citizen of the United- States, and aresident of New York, in the county and State of New York, have invented certain new and useful Improvements in Oorrugators, of which the following is a specification, taken in connection with the accompanying drawings,

whichform a part ofthe same.

This invention relates to corrugators which are especially adapted to form transversecorrugations in metal tubes and relates'to the same class of corrugators shown in the patent to vRowland and Hill, No. 379,985, March 27, 1888, and in the patent to Rowland, No. 412,121, October l, 1889.

In the accompanying drawings, in which the same reference characters referto similar parts inthe several figures, Figure l is a vertical sectional View through a corrugator embodying this invention, parts being shown in elevation. Fig. 2 is a front elevation of the same. taken through the rolls and column. Fig; 4 is a similar view taken through Athe basejof traverse-roll being shown in elevated posi tion. Fig. 6 is a vertical sectional view showing the lift mechanism for lifting the rolls. Fig. 7 is a vertical sectional view showing the traverse mechanism. Fig. 8 is a correspond? ing horizontal sectional view. Figs, 9 and'.

10 are detail sectional views.

The positi vely-rotated driving-rollis mounted in a vertical positionfin the frame of thev corrugator, and. the traverseroll coperates withit to form transverse corrugations in a cylindrical blank. The traverse mechanism,

V which comprises a hydraulic `cylinder and the ends of the beam which operate through hydraulic power to lift the roll in a regulary manner. The table upon which the work rests is mounted to slide upon the platform, and this platform is mo'ved vertically during Fig. 3 is a horizontal sectional viewv Fig. 5 -is aside elevation, the` Y l. Y l i the' operation of the machine to keep the table `in engagement with the work. Y

ing roll E are mounted lin this frame in a vertical position, Vas is indicated in Fig. 1. The driving-roll, which is preferably formed with blunt annular corrugations E', extending around the same, is supported at its up per end in the roll journal-box E6. This box is formed with a suitable bearing, in which the journal E4 of the roll operates. The head E5 of the roll holds the journal in the box, so that both may be raised together when des ired, the journal-box moving in the vertical channel formed by the plates A5 A6 in the head. The lower end of the driving-roll is provided with a fiat portion E9 and also with lugs E2 and depressions E3 to form an interlocking clutch in connection with similar lugs and projections F2 F3 on the upper end of the roll-shaft F. This roll-shaft is supported in heavy bearingsF' and A7, secured cooperating corrugations D", which, as are y indicated, are relatively sharp and with the dat or cylindrical portion D9 at its lower end.V

The Working face of these corrugating-rolls is preferably composed of a series of, rings, (indicated in Fig. 10,) whichare slippediover the central spindle forming the body of the rolland rigidly. secured theretoin any desired manner. Sincetheserings 'arei'eadily removable and may be easily Vreplaced by others of any desired shape, the size and shape of the. cor-rugations may be readily al IOO tered. Furthermore, the cylindrical portions DE9 (shown at thebottom of thecorrugat bearing in the pillar.

ing-rolls in Fig. 1) may be altered as desired, so as to form cylindrical flanges of any desired extent on the ends of the corrugated cylindrical blanks. The journal D2 at the lower end of the traverse-roll rests in the roll journal-box D3, which is mounted to reciprocate in suitable guideways A8 in the base. The journal D4 at the upper end of the traverse-roll engages the bearing-sleeve D6, the collar D5 on the upper end ot' the journal serving to hold the roll in the sleeve. This bearing-sleeve fits within the reciproeating roll journal-box D7, which moves on suitable guides A4 in the head. The two boxes D3 and D7, which supportthe two ends of the traverse-roll, are pivoted to the traverse-bars N, which are connected at their rear ends to the traverse-blocks N', these blocks being mounted to reciprocate in suitable guideways in the base and entablature, respectively. These two traverse-blocks may be simultaneously reciprocated by anydesired traverse mechanism, so as to move the traverse-roll in a parallel manner with respect to the guide-roll. The lower traverse-block is pivoted to the link N2, forming, in connec- -tion with the link N3, a toggle-joint between the traverse-block and the stationary bearing N4. These two links are operated by the way-bar N5, which is pivoted at its upper end to the toggle-link N7, which is connected t0 the traverse-cylinder O and which is pivoted to the distance-piece N6, which has a pivot- The upper traverseblock is operated by a similar linkage from the traverse-cylinder O.

As is seen by reference to Figs. 7 and 8, the traverse-cylinder O is mounted to reciprocate upon the differential piston O", the cylinder being supported by the guides O1, secured to the pillar. A traverse-pipe O3 enters the piston through the outer end of the same, Where it is supported from the pillar and is formed with the enlarged valve-seat (indicated in Figa-8) near its central portion. The traverse-valve O5, which is secured to the cylinder, engages this seat so as to throttle the passage of fluid through the traversepipe when the traverse-cylinder has moved rearward to the full extent of its stroke. The release-pipe O communicates with the passage OA1 within the piston and allows fluid to enter the annular cylinder O7 through the passage O8, so asto drive the traverse-cylinder rearward. It is of course understood that suitable packing of any desired nature may be employed in this hydraulic mechanism to assist in making tight joints between the various parts, and, furthermore, it is evident that it is not necessary to employ this exact form of traverse mechanism, since the linkage may be operated by any desired means. The forward movement of the traverse-cylinder O is limited bythe stop P, which surrounds the cylinder, as indicated in Fig. S. This stop is engaged by the stop-screws P' on either side of the cylinder, and by this means it is moved along the cylinder and lirmly held in any desired position. The screws are provided at their forward ends with the worm-wheels P2, which are engaged bythe worms P3 on the shaft P4. This shaft is driven through the beveled gears P5 PG from the axle P7 of the stop-motor PS, the motor being operated in either direction by the controller P, so that by this means the stop maybe moved into any desired position. The stop P is connected by the link R5 with the stop-needle R', pivoted about the point R4, and the traverse-needle R2 is similarly connected with the traverse-cylinder O by the link R6. These needles cooperate with the dial R, removably supported in a suitable frame R3. It will be seen that through the toggle connections the forward movement of the traverse-cylinder moves the traverseroll D in a parallel manner toward the driving-roll E, and assuming that fluid is admitted through the traverse-pipe O3 the movement of the traverse-cylinder will continue until this cylinder engages the stop P. The traverse-roll may be released by admitting Huid through the release-pipe O9, so that it will act upon the rear end of the dierential piston to move the traverse-cylinder in a rearward direction, the traverse-valve operating to limit this rearward movement. The position of the traverse-roll at any time is indicated by the traverse-needle R2, and the position of the stop P is similarly indicated by the stop-needle. The distance between the two needles indicates the distance through which the traverse-roll may move before the traverse-cylinder engages the stop which limits its movement.

The traverse-roll D may be lifted during the operation of the corrugator into the elevated position. (Shown in Fig. 5.) The lift mechanism which accomplishes this consists, essentially,of two lift-cylinders G2,arranged on either side of the traverse-roll and rigidly connected to the lift-beam G. This lift-beam is provided with the lift-hooks G', which engages the rings D8 when the traverse-roll is moved forward into the release position. (Shown in dotted lines in Fig. 9.) The columns K are secured in a vertical position on either side of the traverse-roll by being rigidly secured to the base A and to the entablature A2, as is indicated in Fig. 6. Each of these columns is formed with the collar K at its upper end, which engages the lift-cylinder G2, so as to guide it during its vertical movement. The lower end of this lift-cylinder is provided with the flange G3, which en gages the smooth bore of the column and in this mannerguides the lower end of the lift-cylinder. In this manner the vertical movement of the lift-cylinder in the column is limited, since the flange cannot pass the collar. The lowerend of thelift-cylinderis formed at G4 to closely engage the lift-rain G5, suitable packing being provided at this point, if desired. .Fluid is admitted to the lowerend of the lift- IOO IIO

' the seat G7 'being formed at this point to cooperate with the'valve H, which is rigidly secured to the lift beam and cylinder. The lift-cylinder and ramsecured to the opposite side of the lift-beam G are formed in a simi-`V lar manner, and the two lift-cylinders are connected at their upper ends by the equalizer-pipe G8, which maintains an equal pres# sure of liquid in the two cylinders at all times. In operating this lift mechanism iiuid is simultaneously admitted through the two liftpipes G5. This serves to slowly raise the lift cylinders and beam, the cut-off Iiange H10 being first raised from the seat G7 and allowing the fluid to enter the cylinders. Thel movement of the cylinders and beam is slow until the throttling-rings Ei8 and H9 have passed through the seat. Y responds with the vengagement vof the lifthooks with the rings. The rate of upward movement is gradually increased as the conical portion H7 of `the valve passes through the seat and isthenonce more reduced by the conical portion H6 of the valve until when the throttling-ring H5 enters the seat the upward movement is slow. This corresponds to the time when the bearing-sleeve D6 moves clear of the roll-box. The upward movement increases at this point as the conical portion H4 of the valve comes into action, and then the movementis very rapid until the .traverseroll is slowly brought to rest at its extreme upwardposition through the tapering portion H of the valve, the throttling-ring H2, and lthe cut-off H3, which engages the seat and prevents further passage of fluid. It will be understood, of course, that instead of this form of `valve and seat to regulate the movements of thelift mechanism otherdevices may be employed. It will be seen that as the roll is lowered by allowing the liuid to escape from the lift-pipes G6 the retardation of the roll occurs at the same points in its downward movement, the roll descending rapidly until the bearing-sleeve-enters the box, and then the roll is gradually lowered into engagement with the box at its lower end. The liftbeam is thereafter allowed -to move clear of the rings, so that the hooks disengage the rings. The equalizer-pipe operates during the movement of the lift mechanism to main# tain the4 fluid-pressure in' the two cylinders equal under all conditions, and the two cylinders are therefore always maintained under the same lvertical pressure, so that they operate smoothly,and the cramping and strain of the parts is thereby prevented. It is of course understood that before the traverseroll is lifted it is always released from engage- Ament with the driving-roll by being moved forward to the fullest extent by the traverse#l gear into the dotted positionindicated in Fig. 9. YThe rings under these conditions come into proper engagement with the lift-hooks; In operating the corrugator, therefore, the

This period of the lift cor-V journal-boxes of the traverse-roll must always be moved into release position before thisroll is lifted, and they'must be main` tained in this position until the traverse-roll is once more lowered into engagementwith them. It is of course understood that the driving-roll is provided with similar lift mechanism, the lift-beam M being connected in a similar way to the two lift-cylinders M2, which move Within the columns M5. By this means the driving-roll may be raised through the opening in the head for replacing or vrepairing the same.

Guide-rolls L are provided on either side of the traverse-roll to maintain the cylindrical blank in proper position with respect to the rollswhile it is being corrugated. These guide-rolls L, as is seen'in Fig. 6, are'provided with suitable rings or projections L', and the journals L2 of these rolls are revo- `lubly mounted in the arms L3 L4, which are Y rigidly secured to the sleeves L5. Each 'one of these sleeves L5 engages the ange K5 on the column K5, and the upper end of the sleeve is supported by the inclosing collar K3. y

These guide-rolls are moved in unison about the columns thr'ough the mechanism indicated Y in Fig. 3, the arms and sleeves being rotated by the links L7, which are connected tothe pivots Li and which are also connected tothe segments L8. The gears L9 on these segments are engaged by the worms L10 on the guide# shaft L, so that owhen this shaft is rotated by any desired means the guiderollsare IOO moved over the table C and are maintained at all times symmetrical with respect to the driving and traverse rolls. As is seen in Fig. 5, the segments L8 are mounted on the columns M3, moving about the bearings M4 on these columns and supported bythe flanges M5.

The base of the machine supports the Averplatform is mounted upon a series ofV posts B', to which the racks B2 are secured, these posts being guided to move vertically. As is seen in Fig. 4, the pinions'yB5, secured to theshafts B5, engage,the racks B-and operatev I Io l.) The hydraulic platform-cylinder B4, con# Y' 4115 ing the operation of the corrugator.y 'This them in'unison, since the elevating-shafty B7.

has worm-and-gear'connections with'both the shafts B5. In this manner the elevating? shaft simultaneously moves all of the posts vertically, so that the platform B is raised and lowered, as desired, while at the same time it is'maintained in horizontal position. As is shown in Figs.g1 and' 5, the table Cfis mounted to reciprocate upon the platform, so as to slide toward and from the corrugating-rolls, the opening C being formed'in the table to accommodate these rolls. The/links C2 ori/either side of the* table serve 'to `con nect it with the table-levers C3, which are both secured upon the shaft indicated. The gear-segment C4 on this shaft meshes with the rack (J5 on the table-cylinder C6. This cylinder engages the differential piston C7 and is operated through hydraulic power, the Huid being admitted through the pipe C8. The table-gage C9 is mounted in the base of the machine and is adjustable, so as to limit the inward movement of the table as desired, since the position of this gage limits the forward movement of the table-cylinder.

In operating this corrugator the traverseroll is raised through the lift mechanism into the position indicated in Fig. 5, and the table C is moved forward to its extreme position by the table-cylinder. A cylindrical blank heated to the desired extent is then placed upon the table. The table is moved inward, carrying the blank with it into engagement with the driving-roll, and thereupon the traverse-roll is lowered inside the blank into engagement with its boxes. The driving-roll is then rotated through the mechanism described, and the traverse-roll is moved backward until it engages the blank and forms cylindrical corrugations in it as it is rotated by the driving-roll. The guide rolls are moved into engagement with the blank, so as to maintain it in proper position on the table and to insure its regular rotation as it is fed around by the corrugating-rolls. It is desirable to move the traverse-roll back, so as to gradually deepen the corrugations in the blank,and to accomplish this the stop is gradually moved by the stop-motor P8, so as to prevent anysudden movement of the traverseroll that might be caused by the hydraulic traverse-gear, and yet the force which moves the traverse-roll is supplied by the hydraulic means shown, which serves to equalize to a greater extent the strain upon the various parts. The traverse-needle and stop-needle serve to indicate in a very desirable manner the depth of the corrugations and the extent through which the traverse-roll is free to move before the stop is engaged by the traverse-cylinder, and by employing a series of dials the grad nations upon them may be made to correspond with the depth of corrugations in cylindrical blanks of varying'thickness. As the corrugations are formed in the cylindrical blank the blank becomes shorter, and the table should always be moved up, so as to support the lower edge of the blank to the desired extent. This assists in preventing the irregular movement of the blank through the corrugatingrolls, which would give a spiral course to the corrugations and cause the blank to turn spirally. If this irregular movement should commence at any time, the traverse-roll should at once be released, and this may be accomplished very quickly by the traverse-gear, since fluid is at once admitted to the release-pipe and the dierential piston very quickly releases the traverse-roll from engagement with the blank. The blank then drops out of engagement with the corrugating-rolls, so that its lower edge engages the table, and the traverse-roll is then gradually brought into engagementwith the blank while the latter is supported by the table. In this way any tendency of the blank to turn spirall y as the corrugations are being formed is corrected. It will be seen that under these conditions the stop may be maintained in position and the traverse-roll may be very quickly brought up tothe position which it occupied before it was released from the blank, after which the regular and gradual movement of the traverse-roll to deepen the corrugations again takes place. Since the driving-roll E is formed with blunter corrugations than the freely-moving traverse-roll, it has less tendency to abrade the surface of the corrugated cylinder than when the driving-roll is formed with the sharper corrugations.4 When the corrugations have attained theirdesired depth,the driving-roll is stopped, the traverse-roll is released and raised by the lift mechanism, and the corrugated cylinder thereupon withdrawn on the table.

It will of course be understood that many modifications may be made in this device by those familiar with this art without departing from the spirit of my inventfon. Furthermore, parts of this invention may be employed without using all of the same, and certain elements and portions of this device may be employed in connection with otherdevices. I do not, therefore, wish to be limited to the disclosure which l have made in this case; but

What I claim as new, and what I Wish to secure by Letters Patent, is set forth in the appended claims.

l. In a corrugator, a frame, a corrugated driving-roll, means to rotate said roll, a corrugated traverse-roll revolubly mounted in movable boxes, traverse mechanism to traverse said traverse-roll with respect to said .driving-roll, said traverse mechanism comprising a traverse-cylinder, a differential hy- `draulic piston coperating with said cylinder,

toggle connections between said cylinder and said boxes, a movable stop to engage said traverse-cylinder to limit the movement of said traverseroll toward said driving-roll; lift mechanism for said driving-roll and said traverse-roll, said lift mechanism comprising lift-cylinders and rams on either side of said rolls connected to lift-beams, equalizer-pipes connecting said lift-cylinders on either end of'said beams, seats and valves provided with throttling-rings to regulate the movement of said lift mechanism; a platform, means to vertically move said platform and to maintain the same in horizontal position, a sliding table mounted on said platform and means to slide said table to carry a blank into engagement with said rolls.

2. In a corrugator, a frame, a rotary driving-roll in said frame, a rotary traverse-roll in said frame to coperate with said drivingroll, said traverse-roll being mounted with IOO movable boxes and traverse-gear to move said traverse-roll with respect to said driving-roll, said traversegear comprising a hydraulicl cylinder, a dierential piston to coperate with said cylinder and toggle connections between said cylinder and said traverse-roll to move said roll in a parallel manner and withr gradually-increasing power toward said driving-roll.

toggle-joints between said blocks and said frame, a traverse cylinder and piston and a toggle connection to operate said toggle-joints from said cylinder and-piston.

4. In a corrugator, a frame, rolls revolubly ,I

mounted in said frame, one of said rolls being mounted in movable boxes to traverse with respect to the other roll, traverse-gear to traverse said roll comprising toggle-joints to move said boxes, and operating means having a toggle connection with said toggle-joints to traverse said roll in a parallel manner'and with gradually-increasing power toward the other roll.

5. In a corrugator, corrugatinggv rolls and control-gear to traverse one of saidrolls, said control-gear comprising a traverse-cylinder, a diiierential piston to coperate with said cylinder under fluid-pressure, a movable stop to engage said cylinder, means to adjust the position of said stop and a traverse-needle and stop-needle connected to said cylinder and stop and cooperating with a. single'dial.

6. In a control-gear, a traverse-cylinder, a differential piston to coperate with said cylinder, a movable stop to engage said cylinder, means to adjust the position of said stop, and a traverse-needle and a stop-needle connectL ed to said cylinder and said stop to cooperate with a single dial.

7. In control gear, a traverse element, means to operate said traverse element, a stop to engage said traverse element, means t-o adjust the position of said stop, a traverseneedle and a stop-needle connected to said vertical cylindrical blank in its outward position and to carry the same inward .to allow said vertically# movable roll to enter said blank.

9. In a corrugator, vertical movable corrugating-rolls and lift mechanism to raise one of said rolls, said lift mechanism comprising cured to said cylinders to coperate with` said seats to regulate the movement ot said cylf inders and an equalizer-pipe between saidv cylinders.

10, In a corrugator, vertical rotary corrugatingrolls and lift mechanism to raise one of said rolls, said lift mechanism comprising a lift-beam, hydraulic elements at eitherend of saidbeam comprising cylinders and rams, one of said elements being secured to either end of said beam, hydraulic means to operate said elements and an equalizer connecting the vcylinders on either side of said beam.

1l. In a corrugator, a frame, rotary corrugating-rolls vertically mounted in said frame,

lift mechanism to lift one-of said rolls, said lift mechanism comprising columns on either side of said roll, said columns being provided with collars at the upper ends of the same, a

lift-beam to engage said roll, lift-cylindersA fitting said collars and guided thereby, said lift-cylinders being provided with anges at their lower ends to guide the same, lift-rams engaging said cylinders, means to admit iiuid to said rams, seats in the upper ends of said rams, valves having throttling-rings thereon connected to said cylinders to cooperate with said seats and an equalizer-pipe connected to said cylinders. 4.

l2. In a corrugator, vertical movablecorrugating-rolls, litt mechanism to elevate one of said rolls, said lift mechanism comprising columns on either side of said roll, hydraulic elements connected to either end of a beam to engage said roll, said elements being guided by said columns, sleeves rotatably mounted on said columns, guide-rolls secured to said sleeves and means to simultaneously move said guide-rolls to engage a blank.

13. In a corrugator, a frame, rotary corrugating-rolls mounted in said frame, one of said rolls being movable to pass inside a cylindrical blank and a movable support mounted ongsaid frame and eoperating with said rolls to receive a cylindrical blank in its outward position and to carry the sameinward to allow said movable roll to enter said blank.

14. In a corrugator, a frame, a positivelyoperated driving-roll having .blunt corrugations to engage the outside of a cylindrical blank, a coperatingroll having sharp corrugations to engage the inside of said blankand means to traverse one of said rolls with respect to the other.

15. In a corrugator, a ypositively;operated I driving-roll having blunt corrugations, a coygating'g-rolls, lift mechanism to raise one of said rolls to allow a blank to pass under the same and to lower said roll within said blank,

a sliding horizontal table and means to operate said table to move a blank under said roll.

17. In a corrugator, a frame, rotary corrugating-rolls mounted in said frame, and traverse-gear to move one of said rolls with respect to thev other, said traverse-gear comprising fluid means to move said roll with regulated force and a movable stop to positively limit the movement of said roll.

18. In a corrugator, vertical rotary corrugating-rolls, a vertically-movable platform, and a table slidingly mounted on said platform to support a cylindrical blank.

19. In a corrugator, vertical rotary corrugating-rolls, means to rotate one of said rolls, lift mechanism to vertically raise one of said rolls, a sliding horizontal table, means to slide said table horizontally so that said table receives a vertical cylindrical blank in its outward position and carries the same bodily under the raised corrugating-roll.

20. In a corrugator, vertical rotary corrugating-rolls, one of said rolls being vertically movable to pass inside a cylindrical blank, means to move said roll vertically and a horizontal sliding table coperating with said rolls to receive a vertical cylindrical blank in its outward position and to carry the same inward to allow said vertically-movable roll to enter said blank.

21. In a corrugator, vertical corrugated driving and traverse rolls, means to rotate said driving-roll, means to traverse said traverse-roll with respect to said driving roll and lift mechanism operating to engage said traverse-roll when it is traversed into released position away from said driving-roll to elevate the same, said lift mechanism being disengaged from said traverse-roll except when said traverse-roll is in released position.

THOMAS F. ROWLAND. Witnesses: I

WILLIAM W. WEST, JANE E. SMITH. 

